Adjustable locking-bolt.



PATE'NTEDI- AUG. 22, 1905.

G. BRUEGGEMANN. ADJUSTABLE LOCKING BOLT.

- APPLICATION FILED JUNE 9, 1905.

GEORGE BRUEGGEMANN, OF CINCINNATI, OHIO.

ADJUSTABLE LOCKING-BOLT.

Specification of Letters Patent.

Patented Aug. 22, 1905.

Application filed June 9, 1905. Serial No. 264,394.

To all 7071017], it may concern.-

Be it known that I, GEORGE BRUEGGEMANN, a citizen of the United States, residing at Cineinnati, Hamilton county, State of Ohio, have invented certain new and useful Improvements in Adjustable Locking-Bolts; and I do declare the following to be a clear, full, and exact description thereof, attention being called to the accompanying drawings, with the reference characters marked thereon, which form also a part of this specification.

This invention relates to certain improvements in locking-bolts of the kind which serve in general to draw and hold two parts to each other and where the two complementary locking parts or members of the bolt are drawn togetherand held in engagement by springpressure and which pressure may be adjusted by means operating eccentrieally.

The leading feature of this invention consists of a construction which permits adjustment by means of these eccentrically-operated means to suit variations in thickness of the parts on which they are used and also to compensate for and take up such changes which are due to, wear or other causes.

The locking-bolt contemplated by my invention may be used in various connections, one use to which it may be put advantageously being on windows which have combined sliding and swinging sashes. In such windows the upright parts or stiles of a sash-frame consist each of two parts, one part being fitted in the usual manner into a sashway in the adjacent window frame which surrounds the sashes and so as to be capable of sliding therein. The other part of each stile is fitted against this sliding part and secured thereto in a manner to be free to swing thereon. A sash may therefore be raised and lowered within the window-frame and it may also be pivotally swung in any one of these positions. cans are provided to pivotally support the swinging parts of the stiles between the sliding ones and to 7 look these two stiles to each other to serve and move as one stile during the time when the sash is used in the ordinary way and merely as a sliding one. The bolt provided by my invention may serve in either one of these connecti-ons that is to say, it may be used to serve as a pivot to support the swinging parts of the stile between the sliding ones and it may also serve to lock these two parts to each other, so that the swinging part of the stile and the sliding one serve and operate as one stile. In each case my belt permits the two complementary parts of such a stile to be drawn tightly together, so as to be dust-proof, and

any inequalities in the wood due to shrinkage or wear may be readily taken up at any time and compensated for, so that a tight closing and fitting sash may always be had.

In the following specification, and particularly pointed out in the claims at the end thereof, is found a full description of my invention, together with its manner of use, parts, and construction, which latter is also illustrated in the accompanying drawings, in which Figure 1 shows an inside elevation of a customary window with two sashes arranged so as to swing or slide. Fig. 2 is a vertical sec tion of the same, the object of these two figures being to show manner of use and application of my invention, also location of the devices thereof with reference to the window. Fig. 3 is a detail view and shows, enlarged, a portion of such a duplex sash-stile as they appear in Fig. 1, part being broken out to show my locking-bolt, which latter is shown inoperative that is, in its inoperative position. Fig. i is an edge or side view of the preceding figure, it being particularly the left side thereof. Figs. 5 and 6 show in similar views the opposite or contiguous surfaces of the two parts of the stile shown in Fig. 3 and as they appear when separated from each other. Fig. '7 in a view similar to Fig. 3 shows the bolt used to lock the two sash-stiles together to prevent one from swinging on the other. Fig. 8 shows in a horizontal section through the sash-stiles the same parts in the same position. Fig. 9 in a view similar to Fig. 3 shows certain parts of my locking-bolt also applied to the pivots which support the swinging parts of the sash between the sliding ones. Fig. 10 is aview similar to Fig. 8, except that the section through the sash-stile is taken above the device.

In the drawings, A A indicate the sashes. B represents the stiles thereof, fitted into the window-frame C in the usual manner. Each stile is made up of two parts, of which one part c is fitted to slide up and down within the sashway of the WillLlO\ -frame in the usual manner. The other part b, which forms also A pivot is pro- Vided for such purpose at D, it being attached to one of the stile parts 7) or cand engages the other part. Means are provided to prevent the sashes from swinging by turning about these pivots when opening in such manner is not desired, which is done by locking the pivotally-supported part Z) of the stiles and the sliding part 0 to each other, so that these two parts form then practically one solid stile, and the sash may then be manipulated in the usual way by being slid up and down in the sashway of the window-frame. I provide for this purpose locking-bolts F, located in suitable numbers at opposite sides of each pivot and on each side of each sash, one being shown here in each case, as indicated at fin Figs. 1 and 2. These locking-bolts are carried in the swinging part?) of each stile and are adapted to engage their keepers G, which are seated on the complementary sliding part c of such stile. They are arranged so as to have an endwise sliding as well as rotary motion, being supported in bushings 10 and 11, one at each end and each suitably secured in the woodwork of the stiles. At one end of each bolt there is a manipulating-handle 12, and at the other end there is a locking-head 13, substantially in shape of an anchor-hook. This head occupies normally bushing 11, as best shown in Fig. 3, being held so by a spring 14, which occupies a recess 15 between the two bushings and acts against a shoulder 16 on the bolt. Vith the bolt in this position the pivoted part of the stile is free to swing past the sliding one, as shown in the lower part of Fig. 2, and no interference by reason of any bolt projecting beyond one part of the stile and striking against the other part can occur. For locking against this swinging motion the two parts of a stile are first alined, as shown in the upper part of Fig. 2, (note also Figs. 8 and 10,) after which the bolts from the position shown in Fig. 3 are pushed toward their keeper and with the head into slot 17 thereof, as shown in dotted line in same figure, the keeper being of courselocated accordingly, so as to be opposite the bolt end when the complementary parts of the stiles are so alined. The bolt is next given a quarter-turn by means of handle 12, (see dotted lines in Fig. 4,) whereby locking-head 13 is caused to turn within the keeper, so as to lie across the slot thereof, as shown in Figs. 7 and 8, thus holding the parts of the stiles to each other. The handle is attached to the bolt in a certain position with reference to the position of the lockinghead, so as to serve as an indicator to show the position of the latter with reference to its keeper. By preference this arrangement is such that the handle points downwardly when the parts are locked, so as to form no projecting obstruction. (See dotted lines in Fig. at, also upper parts of Figs. 1 and 2 and Figs. 7 and 8.) The shape of the handle is furthermore such as to permit ready access to it and insertion of the fingers between it and the glass. (See Figs. 8 and .10 and dotted lines in Fig. 1.) For unlocking and disconnecting (see also Fig. 5,) in which position it becomes free of its keeper.

It will be noted that while locked against rotation the parts of the stiles are also actively drawn together and held so by springs 14:, which by means of the cross-heads pull on the keepers, drawing this particular part of the stile against the other one. To hold the bolts in this locked position against accidental disarrangement, I lock them frictionally, using handle 12 and the action of spring 14 to do it with. For such purpose the handle is shaped to form a locking-cam 18 and is eccentrically pivoted to the outer end of bolt F. By swinging now the handle after the bolt is in the locking position and from a position as shown in Figs. 7 and 8 toward the adjacent part of the stile and into a position as best shown in Fig. 9, also in dotted lines in Fig. 7, and in the upper sash, as shown in Fig. 1, locking-cams 18 will be caused to impinge against the inner edge of the sash-stile and draw the two stiles still closer together and to the extent of the eccentricity of the cam. The action of spring 14, whereby it draws and holds the two stile parts together, is also correspondingly increased by this additional compression. This additional and increased action, although but slight, is sufficient to enable the cam which is beyond its center to resist ready and free movement of the handle out of its locked position, and it furthermore draws the two stile parts still closer together and renders the joint or crevice between them practically air and dust proof. This part of the manipulation of the handle on the bolt, but without moving this latter, is not to be confounded with the use of the handle for the purpose of rotating or sliding a bolt to engage it with or to unlock it from its keeper, nor do these two manipulations necessarily have to go together, and when it is desired to merely hold the sash against swinging this independent manipulation of the handle on the bolt is not necessary. By swinging the free end of the handle toward the edge of the stile, however, as shown in Fig. 9 and in dotted lines in Fig. 7, and after the bolt has been turned for locking within the keeper cam 18, after being passed over its eccentrieally-located pivot, prevents by the frictional pressure of its impingement the accidental turning of the bolt and disengagement from its keeper in addition to maintaining a close joint between the two parts of the sash-stile. To maintain the surface on the edge of stile Z), against which cam 18 impinges always in. the same relation with reference to this latter, particularly against the influences of shrinkage and warping, this surface is rendered adjustable by means of a screw-ring 19, located so as to cause cam 18 to bear against it. It is preferably seated for such purpose in the outer end of boss 10. This screw-ring is provided with a knurled edge to manipulate it for its adjustment. It is clear that by screwing this ring in or out the cam may be caused to always act against the stile with proper and sutiieient pressure. This feature of my invention, whereby the two parts of the stiles are drawn closely together and held so, may also be applied to the pivots .l), as shown in Fig. 9, whereby these latter may also serve for this purpose, so that the stiles are also drawn closely together in the center. For such purpose the pivots D, permanently held to and mounted on the stile parts 0 and supporting the stile parts bin the usual way, engage also the inner ends of a bolt F, inserted from the opposite edge of stile 7), the same as before described. This engagement may be in any suitable manner, but is permanent longitudinally, while permitting rotation at the same time. A screw connection, as shown, will accomplish this object. The manipulation of the eccentric-handle for drawing the sash-stiles together and to adjust the impingement of the eccentric action remains the same.

To recapitulate the manipulation: To unlock the two parts of a sash-stile from one another to permit the inner one with the sash to swing between the outerones, as shown by the lower sash in Fig. 2, handles 12 are turned up, as shown in the lower sash of Fig. 1, also in Figs 3 and 4:, after which the bolts are automatically thrown out of their keepers by action of springs 14, and the sash becomes at once free and clear to swing, as shown in Fig. 2. To relock, the two parts of the sash-stiles are alined, as shown in the upper part of Fig. 2 and in Figs. 8 and 10. The handle from the position shown in Fig. 3 is pushed toward the keeper, as shown in dotted line in same figure, and turned, down again, as shown in Figs. 7 and 8 and in dotted lines in Fig. 4:, causing the locking-head to turn within and hook under the keeper. To draw the sash-stiles so held to each other still tighter together, each handle is swung toward the stile, as shown in Fig. 9 and in dotted lines in Fig. 7, causing thereby the eccentric-cams to impinge against the edge of the stile. WVhen wear causes the impingement to lose its effect, readjustment is had by manipulation of screw-ring 19.

Having described my invention, I claim as new 1. in a device to lock to each other the two complementary parts of a stile of which one is pivotally supported on the other, the combination of a slotted keeper provided in one of these parts, a bolt with a locking-head providedin the other and supported to have a rotary as well as a sliding movclnentwith reference to the keeper mentioned, a spring to normally keep the bolt out of engagement with the keeper and a handle to manipulate the bolt.

2. in a device to lock to each other the two complementary parts of a stile of which one is pivotally supported on the other, the combination of a slotted keeper provided in one of these parts, and a perforation in the other part, which perforation is opposite the keeper in the first part, bosses secured within this perforation at each end thereof, the boss nearest the keeper, being enlarged to form also a recess, a bolt with a locking-head at one end supported by and between these two bosses, a shoulder provided on this bolt and a coilspring sleeved onto it and occupying the space in the perforation between the two bosses, which spring keeps the locking-head normally within the recess formed by one of the bosses and a handle to manipulate the bolt.

3. In a device to lock to each other the two complementary parts of a stile of which one is pivotally supported on the other, the combination of a slotted keeper provided in one of these parts, a bolt with a locking-hearil pro vided in the other and supported to have a rotary as well as a sliding movement with reference to the keeper mentioned,.a spring to normally keep the bolt out of engagement with the keeper and a handle to push the bolt into the, same and to'turn it thereafter, said handle being pivotally mounted at one end of the bolt and provided with a locking-cam eccentrieally arranged with reference to the pivot of the handle, whereby when this latter is swung on the handle and toward the sashstile, the locking-cam is caused to impinge against the stile, thereby frietionally locking the bolt against rotation and also drawing the complementary parts of the sash-style into closer contact.

4. In adeviee to lock to each other the two complementary parts of a stile of which one is pivotally supported on the other, the combination of a slotted keeper provided in one of these parts, a bolt with a locking-head provided in the other and supported to have a. rotary as well as a sliding movement with reference to the keeper mentioned, a spring to normally keep the bolt out of engagement with the keeper, a handle pivotally attached to one end of this belt for manipulation, the same being shaped to form a locking-cam which is eccentrieally arranged with reference to the pivot of the handle and whereby this latter may be frictionally locked and used to draw the complementary parts of the sash-stile into closer contact, and a screw-ring adjustably mounted which operates in conjunction with this locking-eam and whereby the degree of contact between the two parts of a sash-stile may be regulated.

5. In a spring-actuated bolt which is mounted to have a longitudinal as Well as a rotary movement,,the combination of a handle pivotally attached to one of its ends and shaped to form a locking-cam Which is eccentrically arranged with reference to the pivot of the handle, and a screw-ring adjustably mounted with reference to the locking-cam against which this latter may be caused to impinge,

to frictionally hold the handle against rotation, the impingement being in opposition to the spring acting on the bolt, and by which screw-ring the degree of such impingement may be regulated.

In testimony whereof I hereunto afiix my signature in the presence of tWo Witnesses. GEORGE BRUEGGEMANN. Vitnesses:

C. SPENGEL, \VALTER M. Looms. 

